Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/174988
Title: | Phases of unitary matrix models and lattice QCD2 |
Author: | Russo, J. G. (Jorge Guillermo) |
Keywords: | Matèria condensada Teoria de camps (Física) Condensed matter Field theory (Physics) |
Issue Date: | 23-Nov-2020 |
Publisher: | American Physical Society |
Abstract: | We investigate the different large N phases of a generalized Gross-Witten-Wadia (GWW) U(N) matrix model. The deformation mimics the one-loop determinant of fermion matter with a particular coupling to gauge fields. In one version of the model, the GWW phase transition is smoothed out and it becomes a crossover. In another version, the phase transition occurs along a critical line in the two-dimensional parameter space spanned by the 't Hooft coupling λ and the Veneziano parameter τ. We compute the expectation value of Wilson loops in both phases, showing that the transition is third order. A calculation of the β function shows the existence of an IR stable fixed point. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.102.105019 |
It is part of: | Physical Review D, 2020, vol. 102, num. 10, p. 105019 |
URI: | http://hdl.handle.net/2445/174988 |
Related resource: | https://doi.org/10.1103/PhysRevD.102.105019 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
705714.pdf | 347.07 kB | Adobe PDF | View/Open |
This item is licensed under a
Creative Commons License